ahahahha bellino questo modo di fare circuiti elettronici
http://www.instructables.com/id/A-Wire-Maze-With-an-Electronics-Twist/step6/Adding-the-LED-and-Power-Leads/
http://www.instructables.com/id/A-Wire-Maze-With-an-Electronics-Twist/step6/Adding-the-LED-and-Power-Leads/